package com.shop.mapper;

import com.shop.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {
    /**
     * 动态查询数据库中商品信息
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 根据id修改购物车商品
     * @param shoppingCart
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart shoppingCart);

    /**
     * 插入购物车数据
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (`name`,image,user_id,goods_id,setmeal_id,goods_flavor,`number`,amount,create_time) " +
            "values " +
            "(#{name},#{image},#{userId},#{goodsId},#{setmealId},#{goodsFlavor},#{number},#{amount},#{createTime})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 删除购物车
     * @param userId
     */
    @Delete("delete from shopping_cart where user_id = #{userId}")
    void cleanByUserId(Long userId);

    /**
     * 根据id删除购物车数据
     * @param id
     */
    @Delete("delete from shopping_cart where id = #{id}")
    void deleteById(Long id);

    /**
     * 再来一单
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
